5 hours (3, lecture; 2, lab), 4 credits. The deformation of the earth's crust: mechanics of rock deformation. Concepts of stress and strain: behavior of rocks under stress. Results of experimental rock deformation, and their application to naturally deformed rocks. Description and analysis of large- and small-scale structures and the mechanisms that produce them. Selected regional examples. Laboratory studies include orthographic and stereographic projection techniques of problem-solving and work with maps and cross-sections. Field experience. PREREQ: GEO 167 and plane geometry. Recommended: PHY 168.